Synthesis, structural investigation and thermal properties of a novel manganese complex Mn2(DAT)2Cl4(H2O)4 (DAT=1,5-diaminotetrazole)

Jian Guo Zhang; Zhi Min Li; Yan Zang; Tong Lai Zhang; Yuan Jie Shu; Li Yang; Philip P. Power

doi:10.1016/j.jhazmat.2010.02.063

Synthesis, structural investigation and thermal properties of a novel manganese complex Mn₂(DAT)₂Cl₄(H₂O)₄ (DAT=1,5-diaminotetrazole)

Jian Guo Zhang^*, Zhi Min Li, Yan Zang, Tong Lai Zhang, Yuan Jie Shu, Li Yang, Philip P. Power

^*Corresponding author for this work

School of Mechatronical Engineering

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

A novel manganese complex Mn₂(DAT)₂Cl₄(H₂O)₄, where DAT is 1,5-diaminotetrazole, was synthesized by the reaction of manganese(II) chloride tetrahydrate and 1,5-diaminotetrazole (DAT) in ethanol, and characterized by elemental analysis, FT-IR spectroscopy. The crystal structure was determined through X-ray single crystal diffraction. The molecular unit of Mn₂(DAT)₂Cl₄(H₂O)₄ has a distorted octahedral structure, containing two central manganese cations, which coordinated by a mono-dentate terminal chloride, a bulky DAT ligand and two water molecules, and linked by two bidentate bridging chloride ligands. There are two main exothermic peaks and one endothermic peak in the thermal decomposition process, investigated by differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA), the final residue of the title compound at 600°C is MnO. The kinetic parameters of the endothermic process and two main exothermic processes were studied by applying the Kissinger's and Ozawa-Doyle's methods.

Original language	English
Pages (from-to)	1094-1099
Number of pages	6
Journal	Journal of Hazardous Materials
Volume	178
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jhazmat.2010.02.063
Publication status	Published - Jun 2010

Keywords

Crystal structure
Diaminotetrazole
Manganese complex
Non-isothermal kinetics
Thermal properties

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10.1016/j.jhazmat.2010.02.063

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title = "Synthesis, structural investigation and thermal properties of a novel manganese complex Mn2(DAT)2Cl4(H2O)4 (DAT=1,5-diaminotetrazole)",

abstract = "A novel manganese complex Mn2(DAT)2Cl4(H2O)4, where DAT is 1,5-diaminotetrazole, was synthesized by the reaction of manganese(II) chloride tetrahydrate and 1,5-diaminotetrazole (DAT) in ethanol, and characterized by elemental analysis, FT-IR spectroscopy. The crystal structure was determined through X-ray single crystal diffraction. The molecular unit of Mn2(DAT)2Cl4(H2O)4 has a distorted octahedral structure, containing two central manganese cations, which coordinated by a mono-dentate terminal chloride, a bulky DAT ligand and two water molecules, and linked by two bidentate bridging chloride ligands. There are two main exothermic peaks and one endothermic peak in the thermal decomposition process, investigated by differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA), the final residue of the title compound at 600°C is MnO. The kinetic parameters of the endothermic process and two main exothermic processes were studied by applying the Kissinger's and Ozawa-Doyle's methods.",

keywords = "Crystal structure, Diaminotetrazole, Manganese complex, Non-isothermal kinetics, Thermal properties",

author = "Zhang, {Jian Guo} and Li, {Zhi Min} and Yan Zang and Zhang, {Tong Lai} and Shu, {Yuan Jie} and Li Yang and Power, {Philip P.}",

year = "2010",

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doi = "10.1016/j.jhazmat.2010.02.063",

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AU - Zhang, Jian Guo

AU - Li, Zhi Min

AU - Zang, Yan

AU - Zhang, Tong Lai

AU - Shu, Yuan Jie

AU - Yang, Li

AU - Power, Philip P.

PY - 2010/6

Y1 - 2010/6

N2 - A novel manganese complex Mn2(DAT)2Cl4(H2O)4, where DAT is 1,5-diaminotetrazole, was synthesized by the reaction of manganese(II) chloride tetrahydrate and 1,5-diaminotetrazole (DAT) in ethanol, and characterized by elemental analysis, FT-IR spectroscopy. The crystal structure was determined through X-ray single crystal diffraction. The molecular unit of Mn2(DAT)2Cl4(H2O)4 has a distorted octahedral structure, containing two central manganese cations, which coordinated by a mono-dentate terminal chloride, a bulky DAT ligand and two water molecules, and linked by two bidentate bridging chloride ligands. There are two main exothermic peaks and one endothermic peak in the thermal decomposition process, investigated by differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA), the final residue of the title compound at 600°C is MnO. The kinetic parameters of the endothermic process and two main exothermic processes were studied by applying the Kissinger's and Ozawa-Doyle's methods.

AB - A novel manganese complex Mn2(DAT)2Cl4(H2O)4, where DAT is 1,5-diaminotetrazole, was synthesized by the reaction of manganese(II) chloride tetrahydrate and 1,5-diaminotetrazole (DAT) in ethanol, and characterized by elemental analysis, FT-IR spectroscopy. The crystal structure was determined through X-ray single crystal diffraction. The molecular unit of Mn2(DAT)2Cl4(H2O)4 has a distorted octahedral structure, containing two central manganese cations, which coordinated by a mono-dentate terminal chloride, a bulky DAT ligand and two water molecules, and linked by two bidentate bridging chloride ligands. There are two main exothermic peaks and one endothermic peak in the thermal decomposition process, investigated by differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA), the final residue of the title compound at 600°C is MnO. The kinetic parameters of the endothermic process and two main exothermic processes were studied by applying the Kissinger's and Ozawa-Doyle's methods.

KW - Crystal structure

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KW - Non-isothermal kinetics

KW - Thermal properties

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Synthesis, structural investigation and thermal properties of a novel manganese complex Mn₂(DAT)₂Cl₄(H₂O)₄ (DAT=1,5-diaminotetrazole)

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